oclock

　　[误] Its ten past five oclock.

　　[正] Its ten past five.

　　[析] oclock所表达的时间是正点，如果要表达的时间是几点几分或差几分几点都不能用oclock.

　　once

　　[误] Please come and see me once.

　　[正] Please come and see me one day.

　　[析] once用来谈论过去的事情，而不能谈论未来。如果要谈及未来要用one day, some time等。

　　[误] I met him one time when I was a student.

　　[正] I met him once when I was a student.

　　[析] 英语中一次应用once而不用one time，二次要用twice而不用two times.

　　one

　　[误] My grandfather wants to live for hundred years.

　　[正] My grandfather wants to live for one hundred years.

　　[误] He threw away the old dictionary and wanted to buy new one.

　　[正] He threw away the old dictionary and wanted to buy a new one.

　　[误] His dog is bigger than my one.

　　[正] His dog is bigger than mine.

　　[析] 一般物主代词之后不用one，除非one前有修饰词，如my old one， 否则要用名词性物主代词。

　　[误] One of the teacher is in the office.

　　[误] One of the teachers are in the office.

　　[正] One of the teachers is in the office.

　　[析] One是句子的主语，其谓语动词应用单数，而of后面的名词要用复数名词。

　　[误] One third of the books is sent to the students.

　　[正] One third of the books are sent to the students.

　　[析] 几分之几或百分之几这一结构用在主语位置，其谓语动词要与of后面的名词一致，如Two thirds of the work is done.

　　open

　　[误] Are the banks opened today

　　[正] Are the banks open today

　　[析] 要注意open即可用作动词、名词，还可以用作形容词，而close则不同。请看： Are the banks closed today这一句是正确的。

　　or

　　[误] He doesnt drink and smoke.

　　[正] He doesnt drink or smoke.

　　[析] 否定句中的并列连词要用or而不用and.

　　[误] He neither drinks or smokes.

　　[正] He neither drinks nor smokes.

　　other

　　[误] Where are the others students

　　[正] Where are the other students

　　[正] Where are the others

　　[析] other作形容词时没有复数形式，且作为泛指讲时没有定冠词，如： Ask some other eople. 而加定冠词后为特指。 the other可在句中作主语、宾语或定语，如： Now let me show you the other. (宾语) He has two sons. One is a worker, the other is a teacher. (主语) others 只能作代词，而the others则为特指，如： There are five books. Two of them are not good. I like the others.

　　out

　　[误] She went out the classroom, taking a dictionary with her.

　　[正] She went out of the classroom, taking a dictionary with her.

　　[析] out of是指从里出来，使用时不要将of丢掉。

　　oclock

　　[误] Its ten past five oclock.

　　[正] Its ten past five.

　　[析] oclock所表达的时间是正点，如果要表达的时间是几点几分或差几分几点都不能用oclock.

　　once

　　[误] Please come and see me once.

　　[正] Please come and see me one day.

　　[析] once用来谈论过去的事情，而不能谈论未来。如果要谈及未来要用one day, some time等。

　　[误] I met him one time when I was a student.

　　[正] I met him once when I was a student.

　　[析] 英语中一次应用once而不用one time，二次要用twice而不用two times.

　　one

　　[误] My grandfather wants to live for hundred years.

　　[正] My grandfather wants to live for one hundred years.

　　[误] He threw away the old dictionary and wanted to buy new one.

　　[正] He threw away the old dictionary and wanted to buy a new one.

　　[误] His dog is bigger than my one.

　　[正] His dog is bigger than mine.

　　[析] 一般物主代词之后不用one，除非one前有修饰词，如my old one， 否则要用名词性物主代词。

　　[误] One of the teacher is in the office.

　　[误] One of the teachers are in the office.

　　[正] One of the teachers is in the office.

　　[析] One是句子的主语，其谓语动词应用单数，而of后面的名词要用复数名词。

　　[误] One third of the books is sent to the students.

　　[正] One third of the books are sent to the students.

　　[析] 几分之几或百分之几这一结构用在主语位置，其谓语动词要与of后面的名词一致，如Two thirds of the work is done.

　　open

　　[误] Are the banks opened today

　　[正] Are the banks open today

　　[析] 要注意open即可用作动词、名词，还可以用作形容词，而close则不同。请看： Are the banks closed today这一句是正确的。

　　or

　　[误] He doesnt drink and smoke.

　　[正] He doesnt drink or smoke.

　　[析] 否定句中的并列连词要用or而不用and.

　　[误] He neither drinks or smokes.

　　[正] He neither drinks nor smokes.

　　other

　　[误] Where are the others students

　　[正] Where are the other students

　　[正] Where are the others

　　[析] other作形容词时没有复数形式，且作为泛指讲时没有定冠词，如： Ask some other eople. 而加定冠词后为特指。 the other可在句中作主语、宾语或定语，如： Now let me show you the other. (宾语) He has two sons. One is a worker, the other is a teacher. (主语) others 只能作代词，而the others则为特指，如： There are five books. Two of them are not good. I like the others.

　　out

　　[误] She went out the classroom, taking a dictionary with her.

　　[正] She went out of the classroom, taking a dictionary with her.

　　[析] out of是指从里出来，使用时不要将of丢掉。